\begin{table}[htbp]\centering
\def\sym#1{\ifmmode^{#1}\else\(^{#1}\)\fi}
\caption{Polarization over Redistribution and Fixed Attributes \label {TableCMPAll}}
\begin{tabular}{l*{4}{c}}
\hline\hline
                &\multicolumn{1}{c}{(1)}&\multicolumn{1}{c}{(2)}&\multicolumn{1}{c}{(3)}&\multicolumn{1}{c}{(4)}\\
                &\multicolumn{1}{c}{Redistribution}&\multicolumn{1}{c}{Fixed Values}&\multicolumn{1}{c}{Redistribution}&\multicolumn{1}{c}{Fixed Values}\\
\hline
High LMP period &    2.919         &    2.708\sym{***}&                  &                  \\
                &  (2.304)         &  (0.866)         &                  &                  \\
Robots Stock    &                  &                  &    0.074         &    0.561\sym{**} \\
                &                  &                  &  (0.215)         &  (0.219)         \\
LDV             &      Yes         &      Yes         &      Yes         &      Yes         \\
FE Year         &      Yes         &      Yes         &      Yes         &      Yes         \\
\hline
Observations    &      186         &      186         &       62         &       62         \\
r2              &    0.519         &    0.333         &    0.492         &    0.372         \\
aic             &  783.599         &  768.187         &  291.086         &  285.773         \\
\hline\hline
\multicolumn{5}{l}{\footnotesize Standard errors in parentheses}\\
\multicolumn{5}{l}{\footnotesize \sym{*} \(p<0.1\), \sym{**} \(p<0.05\), \sym{***} \(p<0.01\)}\\
\end{tabular}
\end{table}
